50% more food needed

"There will be famines and earthquakes everywhere." said Jesus in his Olivet discourse. I think we have seen the earthquakes increase exponantially in the last hundred years...will the famines now start to be widespread? http://www.msnbc.msn.com/id/24942035/ Riots are breaking out in various places as the rising food prices (caused by shortages) are forcing millions more to go hungry.